Hi - I have 2 camera boxes in the garden. I've noticed on a few occasions when Blue Tits are checking out the box, they have spread their wings from corner to corner, in both directions and then, seemingly rejecting the box. It looks like they are checking the box for size. Is this behaviour common to Blue Tits? I've witnessed this 3 times in the last few days and now I'm wondering if my boxes too small. I'm new to these camera boxes so would appreciate some expert advice - thanks
Terry
Terry